Paper-interfolding machine



Nov. 25 1924' ,4 Sheets-Sheet 1 Filed Sept. 26 1922 INVENTOR.

INVENToR.

51 ORNE s.

4 Sheets-Sheet 2 :Q Q QN J. A. NICHOL PAPER INTERFOLDING MACHINE Filed Sept. 26, 1922 ul. L@

m M75555/5/////////////////////////////// .l

QN., l N MN Y O @E WN .S

www@

Nov. 25, 1924.

Nov. 25, '1924. 1,516,779

J. A. NlcHoLl PAPER INTERFOLDING MACHINE Filed zes,l 1922 4 sheets-sheet s Nov. 25, 1924. 1,516,779

.J. A. NlcHoL PAPER INTERFOLDING MACHINE Filedsept. 26, 1922 4 sheets-sheet 4 INVENTQR. wies Patented Nov. 2i5, 1924.

UNM'ED STATES e, 1,516,779 PATENT OFFICE.

JAMES A. NrcnoL, 0F GREEN BAY, WISCONSIN, AssIeNon or ONE-HALF 'ro JOSEPH I.. HosLnr'r AND ONE-SIXTH To JOHN T. NEUGENT, Born or GREEN BAY, wrscoNsIN.

PAPER-INTERFOLDING MACHINE.

Application led September 26, 1922.H Seriall No. 590,614.

To all whom it may concern:

Be it known that I, JAMES A. NIoHoL, a citizen of the United States, residing at Green Bay, in the county of Brown and State of Wisconsin, have invented certain new and useful Improvements in Paper-Interfolding Machines, of which the following is a specification.

The invention relates to a folding machine, and more particularly to the class of sheet paper interfolding machines.

The` primary object of the invention is the provision of a machine of this character wherein separable sheets or sections of paper in strip form can be `fed into the said machine for the interfolding of the sheets or sections and subsequently stacked in a chute for the delivery of the sheets or sections severed from each other their interfolded relation to one another.

-Another object ofthe invention is the provision of a machine of this character, wherein two webs of" strip paperv which have been previously cross-cut or slitted by a separate machine of any standard type, can be fed into position in that'the cross-cuts or slits in one strip will be centrally with relation kto the cross-cuts or slits in the other strip-and vice versa, so that on the folding of the two strips the same willfbe severed at the cross,- cuts or slits to separate the sheets o r sections and folded one within the other during the y operation of the machine.

Aifur-ther objectv of the invention is the provision of a machine of this character, wherein the interfolded sheets will be automatically extracted from the folding mechanism and stacked into a chute for the delivery of the interfolded sheets of paper from the machine, the folding and extracting mechanisms being of novel form, and are operable synchronously with one another,

.when the machine is in action.

A Astill further object of `the invention is theprovision of a machine of this character, which is comparatively simple-in construction, thoroughly reliable and efficient in operation possessing .but few parts, thereby avoiding complications when making repairs,

should the same be required in the continued useof the machine, strong, durable, readily and easily operated, and inexpensive to manufacture and install.

With these and'other objects in view the invention consists in the features of con- Figure 6, is a detail view showing diagrammatically the path of movements of the folded paper during the operation of the folding mechanism of the machine.

Similar ,reference characters indicate corresponding parts throughout the several views in the drawings.

Referring to the drawings in detail, A., designates generally the main body of the machine, and includes the spaced vertically disposed parallel side frames 10, having journaled centrally therein slightly below the top edges of the same closely arranged reversely rotatable feed rollers 11 and 12, respectively, while immediatelybeneath the latter are `opposed guide bars 13, forming a suitable throat for the passage for the double webs 14 and 15, of. strip paper, which have been previously transversely weakened,

cross-cut or slitted at predetermined inter'- vals, the cross-cuts or slits in the web 14, being medially with respect to the cross-cuts or slits in the web 15, or inother Words, the crosslcuts or slits 16, in one strip of paper are located centrally of the sheets or sections .17

between the cross-cuts or slits in the other de- A between the side frames of the body, and

,upon these pins or rods 21, are fixed the limbs' 105 or arms 22, of the 'lower folding jaws 23, of the paper folding mechanism, these jaws being disposed and working opposite each other in the body of the machine.

The limbs or arms 22, are formed with hubs 24, which surround the pins or rods 21, and each hub is provided with a cam projection 25, against which works a roller 26, mounted on the outer end of each limb or arm 26 of an upper gripping jaw 27, which .is yieldably connected at 28, to the folding jaw 23, adjacent thereto, the said jaw 23, being formed with a fulcrum 29, engaged in a seat 30, formed in the gripplng jaw 27 so as to permit slight rocking move'- ment of the' latter with respectto the .folding jaw 23, when the same is moved V1n an telliptical course, in a manner presently de scribed and for the purpose hereinafter set forth;

Journaled in the side frames 10, of the body A, and below the bearings or boxes 1S, are rocking shafts`31, having swiveled thereon arms 32, which are formed at their in.

ner free ends with tucking blades 33, each co-operating with and acting b'etween the jaws 23 and 27, opposite the same for 1nitially tucking the double webs of paper -therebetween when feeding across these jaws and said blade from the feed rollers 11 and 12, on passing through the throat formed by the guide `bars 13, in the body of the machine.

The jaws 23 and 27, are lined withtibre strips 34, so as to frictionally hold the paper when tucked between the same by the tuck` ing blades 33, which will be hereinafter more fully described. Y

Mounted on vthe shafts 31, are rider levers 35, having rollers 36, at their free ends, and

. these levers are capable of adjustment on said shafts through the medium of set screws 37, while the rollers`36, are adapted to work against cams 38, fixed on crank shafts 39, the cranks 40, of which .have coupled thereto actuator links 41, and to the latter are Vpivoted or trunnioned at 28, the limbs or arms 26, of the upper tucking jaws 27, and through these links and the cranks the major movement is imparted' to the jaws 23 and 27 as 'the shafts 39, each constitutes the 'major axis, while the crank pin or rod 21, is the minor axis for said jaws. vThe crank shafts 39, are suitably journaled in the side frames l0, below the rocking shafts 31.

'tei-folded sheets of -mechanism and delivers the same from the which have pivoted tinued elliptical movement ofextract the same therefrom at the limit of the lowermost stroke of said jaws and stack the interfolded sheets at the upper open end of the chute 43, to be in alignment therewith so as to be received therein, as will be apparent.

On the shafts 44, are rocker arms 47, thereto a connecting rod 48, for the oscillation thereof in unison, while fixed to one of these shafts 44, is a crank arm 49, having pivote'd thereto an operating lever 50, whichl is connected at the upper portion of the machine in any suit' able manner with driving and timing train of gear mechanism for the feeding and interfolding operationsA of the said machine.

It is of course,;to be understood that the jaws 23 and 27, and the tucking blade 33, atvone side ofthe body of the machine are timed to operate exact-ly opposite to those on the adjoining side of said machine, thereby effecting the interfolding of the double webs of paper continuous during the working of the machine.

The jaws 23 and 27, at their rear edges are cut into so as to form slots 51, therein to accommodate the extractor hooksI 46, and serve as a clearance therefor, whereby the same will engage the interfolded sheet of paper vin the jaws and extract'them 'ien the latter are at the lowest points of movement in the elliptical paths indicated at X, in the drawings. The-.elliptical movement of the jaws 23, is accomplished by the crank pins 21,. rotating around the center of shaft 19, and are connected for this movc` ment through the crank discs or eccentric arms 20, this anovement being the' minor axis of the ellipse. The major axis is formed by crank 40, rotating around the center'of crank shaft 39.

In the operation of the machine, the double strips of paper,'which have been previously cross-cut or slitted by any standard type of device mounted at the top of 'the body A, are advanced between the feed rollers 12, and carried downwardly so 'as to pass through the throat formed'by the guide bars 13, to be positioned between a pair of the jaws 23 and 27 and one'of the tucking blades 33, on an arm 32, opposite said jaws, the gripping aw 27, at this time being in open relationvto the folding jaw 23, so that the webs of papers can be tucked between these jaws by 'the' tucking blade, which is effected by the said jaws being caused to approach the latter.

the jaws 23 and 27, in the course of the path X, the blade 33, 'retreats frmbetweensaid jaws, and the gripping jaw 27, closes relative to On the conthe folding jaw 23, untilv the latter'v has reached its lowest point of movement whereupon the gripping jaw again opens sition to engage the folded paper, that to sitely timed thereto.

jaws relative to the It will be apparent that-"the cam'38, on

each side of the machine is so formed 'thatv when the'cross-cut or slit 16, ineach web comes in direct alignment with the tucking blade 33, when in its uppermost position, that the said blade then follows the crosscut or slit until it meets the jaws 23 and 27,

`whereupon the cam so changes to cause the blade to follow 'at the same-speed of movement of the jaws,thereby clearing the latter to return quickly to uppermost position again.

What is claimed is:

1. A machine of the 'character described, comprising paper interfolding mechanisms, each having oppositely timed folding and gripping jaws, means for moving each mechanism on major and minor axes to effect an elliptical path of movement thereof, means for tucking paper webs between the jaws at one point of movement thereof,

, means for opening and closing the gripping folding jaws at predetermined intervals', and mechanism for removing the folded Vpaper from between the jaws.

2.. A machine of the character described, comprising paper interfolding mechanisms, each having oppositely timed folding and gripping jaws, means for moving each mechanism on major and minor axes to ef-v fect an elliptical path of movement thereof, means for tucking paper webs between the jaws at one point of movement thereof, means for opening and closing the gripping jaws, relative to the folding jaws at predetermined intervals, mechanismv for remov-y between the jaws,

in the folded a er from g p P the -folded sheets and means for receiving when extracted by the last mentioned mechamsm.

l3. A machine of the character described,

comprising paper interfolding mechanisms,

has reference fect an elliptical path of movement there0f,.

means for tucking paper webs between the jaws at one point of movement thereof, means for opening and closing the gripping jaws relative to the folding jaws at prede-l termined intervals, mechanism for removing the folded paper from between the jaws, means for receiving the folded sheets of paper when extracted by the last-mentioned mechanism, and mechanism for feeding double webs of paper between the in'terfolding mechanisms.

4. A machine of the character described,

comprising paper interfolding mechanisms,

eachhaving oppositely timed folding and gripping jaws, `means for moving each mechanism on major and minor axes to effect an ellipticalpath'of movement thereof, means for tucking paper webs between the jaws at one pointv of movement thereof, means for opening and closing the gripping jaws relative to the folding jaws at predetermined intervals, mechanism for removing the folded paper from between the jaws, means for receiving the folded sheets of paper when extracted by the last-mentioned mechanism, mechanism for feeding double webs of paper `between the interfolding mechanisms, and means for guiding the paper advanced by the feeding mechanism.

5.` A machine of the character described, comprising paper interfolding mechanisms, each having oppositely timed folding and gl'lPPmg mechanism on major and minor axes to effect an elliptical path of .movement thereof, means for tucking paper webs between the jaws, means for moving each` jaws at one point of v movement thereof,

- termined intervals, mechanism for removing the folded paper from between the' jaws, means for receiving the folded' shets of paper when extracted by the last-named mechanism, mechanism for feeding double webs ofV paper between the intrfolding mechanisms, means for guiding the paper advanced b means for riving the timing mechanisms for the jaws and tucking means;

In testimony whereof I ax- 'my ,signaturef -v fi q JAMES A..H'NIcHon the feeding mechanism, and* i 

